Abstract

Measurements of the thermal diffusion factors αT are made on an eight‐tube glass trennschaukel with its two ends at about 0° and 100°C. The two systems investigated are Ar–He and Kr–Ne at a composition for which some special interest exists. The αT results are compared with the other available literature values, and the previously observed anomalies are explained on the basis of these new measurements. For the Ar–He mixture containing 81.6% Ar we get an αT value of 0.30 at 318.6°K. Similarly for a Kr–Ne mixture (27.5% Ne) the value is found to be 0.303 at 318.5°K.